. Comparative anatomy of the vegetative organs of the phanerogams and ferns. Plant anatomy; Phanerogams; Ferns. EPIDERMIS. 95 of Thymus (Fig. 39), Lophanthus, Satureja: also the longer stalked scales of Lavandula multifida, &c. (comp. Martinet, /. c, Taf. 11). The celebrated glands of the Hop (Fig, 40, Rauter, Martinet, /. c.) are multicellular peltate scales, _ depressed in a cup-like or conical manner, and covered when mature by the bladder-like gland, which is usually raised conically, and therefore the whole appears as though it consisted of two cones with their bases in con- tact. As
. Comparative anatomy of the vegetative organs of the phanerogams and ferns. Plant anatomy; Phanerogams; Ferns. EPIDERMIS. 95 of Thymus (Fig. 39), Lophanthus, Satureja: also the longer stalked scales of Lavandula multifida, &c. (comp. Martinet, /. c, Taf. 11). The celebrated glands of the Hop (Fig, 40, Rauter, Martinet, /. c.) are multicellular peltate scales, _ depressed in a cup-like or conical manner, and covered when mature by the bladder-like gland, which is usually raised conically, and therefore the whole appears as though it consisted of two cones with their bases in con- tact. As found by Meyen, the yellow glands on the foliage of Ribes nigrum closely resemble them in structure, but are always flatly disc-shaped. On the extended glandular surfaces, as that of the epider- mis of the branch of Betula, I have no further details to adduce. Of the sticky zones of the Sileneae, it may be still more definitely stated that the rather difficult determina- tion whether the secretion is formed from the peculiar prominent epidermal cells alone (linger), or from the epidermis of the whole sticky zone, requires further investigation. Among the circumscribed spots, which are usually called simply ' glands,' or compound (external) glands, two things may be distinguished from one another. First, closely. WrP^ Fig. 38. — Pog-ostenion Patschoiili; young leaf, transverse section. Piece of epidermis, witli a short glandular hair ; secretion dissolved by alcohol (375).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bary, A. de (Anton), 1831-1888; Bower, F. O. (Frederick Orpen), 1855-1948; Scott, Dukinfield Henry, 1854-1934. Oxford : Clarendon Press
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Keywords: ., bookcentury1800, bookdecad, booksubjectplantanatomy, bookyear1884
